feat: add requiredChains support

src/lib/utils.ts

@@ -13,6 +13,7 @@ import {
   APP_TAGS, APP_URL,
   APP_WEBHOOK_URL,
   APP_ACCOUNT_ASSOCIATION,
+  APP_REQUIRED_CHAINS,
 } from './constants';
 
 export function cn(...inputs: ClassValue[]) {
@@ -56,6 +57,7 @@ export async function getFarcasterDomainManifest(): Promise<Manifest> {
       description: APP_DESCRIPTION,
       primaryCategory: APP_PRIMARY_CATEGORY,
       tags: APP_TAGS,
+      requiredChains: APP_REQUIRED_CHAINS.length > 0 ? APP_REQUIRED_CHAINS : undefined,
     },
   };
 }